Finding the Fourth Proportional to 52,279.16, 72,151.42 and 31,058.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,279.16 : 72,151.42 = 31,058.50 : x
2. Step 2: Convert to fraction form
   52,279.16/72,151.42 = 31,058.50/x
3. Step 3: Cross multiply
   52,279.16x = 72,151.42 × 31,058.50
4. Step 4: Simplify right side
   52,279.16x = 2,240,914,878.07
5. Step 5: Solve for x
   x = 2,240,914,878.07/52,279.16
6. Step 6: Final answer
   x = 42,864.40